Cooks Innovations Plate Spacers Combo 9 Red and 9 Green, 9 Low and 9 High Offer space and support between each plate. Piled dishes can be heated up in microwave or kept warm in oven (max. 210F). Can be kept cold in the fridge or freezer. Save space on your countertop and time before serving the dishes. Plates can be prepared in advance and saves time in serving guests.